1
2
3
4
5
6#include <drm/drm_prime.h>
7#include <linux/dma-mapping.h>
8#include <linux/shmem_fs.h>
9#include <linux/spinlock.h>
10#include <linux/vmalloc.h>
11
12#include "etnaviv_drv.h"
13#include "etnaviv_gem.h"
14#include "etnaviv_gpu.h"
15#include "etnaviv_mmu.h"
16
17static struct lock_class_key etnaviv_shm_lock_class;
18static struct lock_class_key etnaviv_userptr_lock_class;
19
20static void etnaviv_gem_scatter_map(struct etnaviv_gem_object *etnaviv_obj)
21{
22 struct drm_device *dev = etnaviv_obj->base.dev;
23 struct sg_table *sgt = etnaviv_obj->sgt;
24
25
26
27
28
29 if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
30 dma_map_sgtable(dev->dev, sgt, DMA_BIDIRECTIONAL, 0);
31}
32
33static void etnaviv_gem_scatterlist_unmap(struct etnaviv_gem_object *etnaviv_obj)
34{
35 struct drm_device *dev = etnaviv_obj->base.dev;
36 struct sg_table *sgt = etnaviv_obj->sgt;
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53 if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
54 dma_unmap_sgtable(dev->dev, sgt, DMA_BIDIRECTIONAL, 0);
55}
56
57
58static int etnaviv_gem_shmem_get_pages(struct etnaviv_gem_object *etnaviv_obj)
59{
60 struct drm_device *dev = etnaviv_obj->base.dev;
61 struct page **p = drm_gem_get_pages(&etnaviv_obj->base);
62
63 if (IS_ERR(p)) {
64 dev_dbg(dev->dev, "could not get pages: %ld\n", PTR_ERR(p));
65 return PTR_ERR(p);
66 }
67
68 etnaviv_obj->pages = p;
69
70 return 0;
71}
72
73static void put_pages(struct etnaviv_gem_object *etnaviv_obj)
74{
75 if (etnaviv_obj->sgt) {
76 etnaviv_gem_scatterlist_unmap(etnaviv_obj);
77 sg_free_table(etnaviv_obj->sgt);
78 kfree(etnaviv_obj->sgt);
79 etnaviv_obj->sgt = NULL;
80 }
81 if (etnaviv_obj->pages) {
82 drm_gem_put_pages(&etnaviv_obj->base, etnaviv_obj->pages,
83 true, false);
84
85 etnaviv_obj->pages = NULL;
86 }
87}
88
89struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *etnaviv_obj)
90{
91 int ret;
92
93 lockdep_assert_held(&etnaviv_obj->lock);
94
95 if (!etnaviv_obj->pages) {
96 ret = etnaviv_obj->ops->get_pages(etnaviv_obj);
97 if (ret < 0)
98 return ERR_PTR(ret);
99 }
100
101 if (!etnaviv_obj->sgt) {
102 struct drm_device *dev = etnaviv_obj->base.dev;
103 int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
104 struct sg_table *sgt;
105
106 sgt = drm_prime_pages_to_sg(etnaviv_obj->base.dev,
107 etnaviv_obj->pages, npages);
108 if (IS_ERR(sgt)) {
109 dev_err(dev->dev, "failed to allocate sgt: %ld\n",
110 PTR_ERR(sgt));
111 return ERR_CAST(sgt);
112 }
113
114 etnaviv_obj->sgt = sgt;
115
116 etnaviv_gem_scatter_map(etnaviv_obj);
117 }
118
119 return etnaviv_obj->pages;
120}
121
122void etnaviv_gem_put_pages(struct etnaviv_gem_object *etnaviv_obj)
123{
124 lockdep_assert_held(&etnaviv_obj->lock);
125
126}
127
128static int etnaviv_gem_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
129 struct vm_area_struct *vma)
130{
131 pgprot_t vm_page_prot;
132
133 vma->vm_flags &= ~VM_PFNMAP;
134 vma->vm_flags |= VM_MIXEDMAP;
135
136 vm_page_prot = vm_get_page_prot(vma->vm_flags);
137
138 if (etnaviv_obj->flags & ETNA_BO_WC) {
139 vma->vm_page_prot = pgprot_writecombine(vm_page_prot);
140 } else if (etnaviv_obj->flags & ETNA_BO_UNCACHED) {
141 vma->vm_page_prot = pgprot_noncached(vm_page_prot);
142 } else {
143
144
145
146
147
148 vma->vm_pgoff = 0;
149 vma_set_file(vma, etnaviv_obj->base.filp);
150
151 vma->vm_page_prot = vm_page_prot;
152 }
153
154 return 0;
155}
156
157int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma)
158{
159 struct etnaviv_gem_object *obj;
160 int ret;
161
162 ret = drm_gem_mmap(filp, vma);
163 if (ret) {
164 DBG("mmap failed: %d", ret);
165 return ret;
166 }
167
168 obj = to_etnaviv_bo(vma->vm_private_data);
169 return obj->ops->mmap(obj, vma);
170}
171
172static vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf)
173{
174 struct vm_area_struct *vma = vmf->vma;
175 struct drm_gem_object *obj = vma->vm_private_data;
176 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
177 struct page **pages, *page;
178 pgoff_t pgoff;
179 int err;
180
181
182
183
184
185
186 err = mutex_lock_interruptible(&etnaviv_obj->lock);
187 if (err)
188 return VM_FAULT_NOPAGE;
189
190 pages = etnaviv_gem_get_pages(etnaviv_obj);
191 mutex_unlock(&etnaviv_obj->lock);
192
193 if (IS_ERR(pages)) {
194 err = PTR_ERR(pages);
195 return vmf_error(err);
196 }
197
198
199 pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT;
200
201 page = pages[pgoff];
202
203 VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address,
204 page_to_pfn(page), page_to_pfn(page) << PAGE_SHIFT);
205
206 return vmf_insert_page(vma, vmf->address, page);
207}
208
209int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset)
210{
211 int ret;
212
213
214 ret = drm_gem_create_mmap_offset(obj);
215 if (ret)
216 dev_err(obj->dev->dev, "could not allocate mmap offset\n");
217 else
218 *offset = drm_vma_node_offset_addr(&obj->vma_node);
219
220 return ret;
221}
222
223static struct etnaviv_vram_mapping *
224etnaviv_gem_get_vram_mapping(struct etnaviv_gem_object *obj,
225 struct etnaviv_iommu_context *context)
226{
227 struct etnaviv_vram_mapping *mapping;
228
229 list_for_each_entry(mapping, &obj->vram_list, obj_node) {
230 if (mapping->context == context)
231 return mapping;
232 }
233
234 return NULL;
235}
236
237void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping)
238{
239 struct etnaviv_gem_object *etnaviv_obj = mapping->object;
240
241 mutex_lock(&etnaviv_obj->lock);
242 WARN_ON(mapping->use == 0);
243 mapping->use -= 1;
244 mutex_unlock(&etnaviv_obj->lock);
245
246 drm_gem_object_put(&etnaviv_obj->base);
247}
248
249struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
250 struct drm_gem_object *obj, struct etnaviv_iommu_context *mmu_context,
251 u64 va)
252{
253 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
254 struct etnaviv_vram_mapping *mapping;
255 struct page **pages;
256 int ret = 0;
257
258 mutex_lock(&etnaviv_obj->lock);
259 mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, mmu_context);
260 if (mapping) {
261
262
263
264
265
266
267 if (mapping->use == 0) {
268 mutex_lock(&mmu_context->lock);
269 if (mapping->context == mmu_context)
270 mapping->use += 1;
271 else
272 mapping = NULL;
273 mutex_unlock(&mmu_context->lock);
274 if (mapping)
275 goto out;
276 } else {
277 mapping->use += 1;
278 goto out;
279 }
280 }
281
282 pages = etnaviv_gem_get_pages(etnaviv_obj);
283 if (IS_ERR(pages)) {
284 ret = PTR_ERR(pages);
285 goto out;
286 }
287
288
289
290
291
292 mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, NULL);
293 if (!mapping) {
294 mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);
295 if (!mapping) {
296 ret = -ENOMEM;
297 goto out;
298 }
299
300 INIT_LIST_HEAD(&mapping->scan_node);
301 mapping->object = etnaviv_obj;
302 } else {
303 list_del(&mapping->obj_node);
304 }
305
306 etnaviv_iommu_context_get(mmu_context);
307 mapping->context = mmu_context;
308 mapping->use = 1;
309
310 ret = etnaviv_iommu_map_gem(mmu_context, etnaviv_obj,
311 mmu_context->global->memory_base,
312 mapping, va);
313 if (ret < 0) {
314 etnaviv_iommu_context_put(mmu_context);
315 kfree(mapping);
316 } else {
317 list_add_tail(&mapping->obj_node, &etnaviv_obj->vram_list);
318 }
319
320out:
321 mutex_unlock(&etnaviv_obj->lock);
322
323 if (ret)
324 return ERR_PTR(ret);
325
326
327 drm_gem_object_get(obj);
328 return mapping;
329}
330
331void *etnaviv_gem_vmap(struct drm_gem_object *obj)
332{
333 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
334
335 if (etnaviv_obj->vaddr)
336 return etnaviv_obj->vaddr;
337
338 mutex_lock(&etnaviv_obj->lock);
339
340
341
342
343 if (!etnaviv_obj->vaddr)
344 etnaviv_obj->vaddr = etnaviv_obj->ops->vmap(etnaviv_obj);
345 mutex_unlock(&etnaviv_obj->lock);
346
347 return etnaviv_obj->vaddr;
348}
349
350static void *etnaviv_gem_vmap_impl(struct etnaviv_gem_object *obj)
351{
352 struct page **pages;
353
354 lockdep_assert_held(&obj->lock);
355
356 pages = etnaviv_gem_get_pages(obj);
357 if (IS_ERR(pages))
358 return NULL;
359
360 return vmap(pages, obj->base.size >> PAGE_SHIFT,
361 VM_MAP, pgprot_writecombine(PAGE_KERNEL));
362}
363
364static inline enum dma_data_direction etnaviv_op_to_dma_dir(u32 op)
365{
366 if (op & ETNA_PREP_READ)
367 return DMA_FROM_DEVICE;
368 else if (op & ETNA_PREP_WRITE)
369 return DMA_TO_DEVICE;
370 else
371 return DMA_BIDIRECTIONAL;
372}
373
374int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
375 struct drm_etnaviv_timespec *timeout)
376{
377 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
378 struct drm_device *dev = obj->dev;
379 bool write = !!(op & ETNA_PREP_WRITE);
380 int ret;
381
382 if (!etnaviv_obj->sgt) {
383 void *ret;
384
385 mutex_lock(&etnaviv_obj->lock);
386 ret = etnaviv_gem_get_pages(etnaviv_obj);
387 mutex_unlock(&etnaviv_obj->lock);
388 if (IS_ERR(ret))
389 return PTR_ERR(ret);
390 }
391
392 if (op & ETNA_PREP_NOSYNC) {
393 if (!dma_resv_test_signaled(obj->resv, write))
394 return -EBUSY;
395 } else {
396 unsigned long remain = etnaviv_timeout_to_jiffies(timeout);
397
398 ret = dma_resv_wait_timeout(obj->resv, write, true, remain);
399 if (ret <= 0)
400 return ret == 0 ? -ETIMEDOUT : ret;
401 }
402
403 if (etnaviv_obj->flags & ETNA_BO_CACHED) {
404 dma_sync_sgtable_for_cpu(dev->dev, etnaviv_obj->sgt,
405 etnaviv_op_to_dma_dir(op));
406 etnaviv_obj->last_cpu_prep_op = op;
407 }
408
409 return 0;
410}
411
412int etnaviv_gem_cpu_fini(struct drm_gem_object *obj)
413{
414 struct drm_device *dev = obj->dev;
415 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
416
417 if (etnaviv_obj->flags & ETNA_BO_CACHED) {
418
419 WARN_ON(etnaviv_obj->last_cpu_prep_op == 0);
420 dma_sync_sgtable_for_device(dev->dev, etnaviv_obj->sgt,
421 etnaviv_op_to_dma_dir(etnaviv_obj->last_cpu_prep_op));
422 etnaviv_obj->last_cpu_prep_op = 0;
423 }
424
425 return 0;
426}
427
428int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
429 struct drm_etnaviv_timespec *timeout)
430{
431 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
432
433 return etnaviv_gpu_wait_obj_inactive(gpu, etnaviv_obj, timeout);
434}
435
436#ifdef CONFIG_DEBUG_FS
437static void etnaviv_gem_describe_fence(struct dma_fence *fence,
438 const char *type, struct seq_file *m)
439{
440 if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
441 seq_printf(m, "\t%9s: %s %s seq %llu\n",
442 type,
443 fence->ops->get_driver_name(fence),
444 fence->ops->get_timeline_name(fence),
445 fence->seqno);
446}
447
448static void etnaviv_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
449{
450 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
451 struct dma_resv *robj = obj->resv;
452 struct dma_resv_list *fobj;
453 struct dma_fence *fence;
454 unsigned long off = drm_vma_node_start(&obj->vma_node);
455
456 seq_printf(m, "%08x: %c %2d (%2d) %08lx %p %zd\n",
457 etnaviv_obj->flags, is_active(etnaviv_obj) ? 'A' : 'I',
458 obj->name, kref_read(&obj->refcount),
459 off, etnaviv_obj->vaddr, obj->size);
460
461 rcu_read_lock();
462 fobj = dma_resv_shared_list(robj);
463 if (fobj) {
464 unsigned int i, shared_count = fobj->shared_count;
465
466 for (i = 0; i < shared_count; i++) {
467 fence = rcu_dereference(fobj->shared[i]);
468 etnaviv_gem_describe_fence(fence, "Shared", m);
469 }
470 }
471
472 fence = dma_resv_excl_fence(robj);
473 if (fence)
474 etnaviv_gem_describe_fence(fence, "Exclusive", m);
475 rcu_read_unlock();
476}
477
478void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
479 struct seq_file *m)
480{
481 struct etnaviv_gem_object *etnaviv_obj;
482 int count = 0;
483 size_t size = 0;
484
485 mutex_lock(&priv->gem_lock);
486 list_for_each_entry(etnaviv_obj, &priv->gem_list, gem_node) {
487 struct drm_gem_object *obj = &etnaviv_obj->base;
488
489 seq_puts(m, " ");
490 etnaviv_gem_describe(obj, m);
491 count++;
492 size += obj->size;
493 }
494 mutex_unlock(&priv->gem_lock);
495
496 seq_printf(m, "Total %d objects, %zu bytes\n", count, size);
497}
498#endif
499
500static void etnaviv_gem_shmem_release(struct etnaviv_gem_object *etnaviv_obj)
501{
502 vunmap(etnaviv_obj->vaddr);
503 put_pages(etnaviv_obj);
504}
505
506static const struct etnaviv_gem_ops etnaviv_gem_shmem_ops = {
507 .get_pages = etnaviv_gem_shmem_get_pages,
508 .release = etnaviv_gem_shmem_release,
509 .vmap = etnaviv_gem_vmap_impl,
510 .mmap = etnaviv_gem_mmap_obj,
511};
512
513void etnaviv_gem_free_object(struct drm_gem_object *obj)
514{
515 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
516 struct etnaviv_drm_private *priv = obj->dev->dev_private;
517 struct etnaviv_vram_mapping *mapping, *tmp;
518
519
520 WARN_ON(is_active(etnaviv_obj));
521
522 mutex_lock(&priv->gem_lock);
523 list_del(&etnaviv_obj->gem_node);
524 mutex_unlock(&priv->gem_lock);
525
526 list_for_each_entry_safe(mapping, tmp, &etnaviv_obj->vram_list,
527 obj_node) {
528 struct etnaviv_iommu_context *context = mapping->context;
529
530 WARN_ON(mapping->use);
531
532 if (context) {
533 etnaviv_iommu_unmap_gem(context, mapping);
534 etnaviv_iommu_context_put(context);
535 }
536
537 list_del(&mapping->obj_node);
538 kfree(mapping);
539 }
540
541 drm_gem_free_mmap_offset(obj);
542 etnaviv_obj->ops->release(etnaviv_obj);
543 drm_gem_object_release(obj);
544
545 kfree(etnaviv_obj);
546}
547
548void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj)
549{
550 struct etnaviv_drm_private *priv = dev->dev_private;
551 struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
552
553 mutex_lock(&priv->gem_lock);
554 list_add_tail(&etnaviv_obj->gem_node, &priv->gem_list);
555 mutex_unlock(&priv->gem_lock);
556}
557
558static const struct vm_operations_struct vm_ops = {
559 .fault = etnaviv_gem_fault,
560 .open = drm_gem_vm_open,
561 .close = drm_gem_vm_close,
562};
563
564static const struct drm_gem_object_funcs etnaviv_gem_object_funcs = {
565 .free = etnaviv_gem_free_object,
566 .pin = etnaviv_gem_prime_pin,
567 .unpin = etnaviv_gem_prime_unpin,
568 .get_sg_table = etnaviv_gem_prime_get_sg_table,
569 .vmap = etnaviv_gem_prime_vmap,
570 .vm_ops = &vm_ops,
571};
572
573static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags,
574 const struct etnaviv_gem_ops *ops, struct drm_gem_object **obj)
575{
576 struct etnaviv_gem_object *etnaviv_obj;
577 unsigned sz = sizeof(*etnaviv_obj);
578 bool valid = true;
579
580
581 switch (flags & ETNA_BO_CACHE_MASK) {
582 case ETNA_BO_UNCACHED:
583 case ETNA_BO_CACHED:
584 case ETNA_BO_WC:
585 break;
586 default:
587 valid = false;
588 }
589
590 if (!valid) {
591 dev_err(dev->dev, "invalid cache flag: %x\n",
592 (flags & ETNA_BO_CACHE_MASK));
593 return -EINVAL;
594 }
595
596 etnaviv_obj = kzalloc(sz, GFP_KERNEL);
597 if (!etnaviv_obj)
598 return -ENOMEM;
599
600 etnaviv_obj->flags = flags;
601 etnaviv_obj->ops = ops;
602
603 mutex_init(&etnaviv_obj->lock);
604 INIT_LIST_HEAD(&etnaviv_obj->vram_list);
605
606 *obj = &etnaviv_obj->base;
607 (*obj)->funcs = &etnaviv_gem_object_funcs;
608
609 return 0;
610}
611
612
613int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
614 u32 size, u32 flags, u32 *handle)
615{
616 struct etnaviv_drm_private *priv = dev->dev_private;
617 struct drm_gem_object *obj = NULL;
618 int ret;
619
620 size = PAGE_ALIGN(size);
621
622 ret = etnaviv_gem_new_impl(dev, size, flags,
623 &etnaviv_gem_shmem_ops, &obj);
624 if (ret)
625 goto fail;
626
627 lockdep_set_class(&to_etnaviv_bo(obj)->lock, &etnaviv_shm_lock_class);
628
629 ret = drm_gem_object_init(dev, obj, size);
630 if (ret)
631 goto fail;
632
633
634
635
636
637
638
639 mapping_set_gfp_mask(obj->filp->f_mapping, priv->shm_gfp_mask);
640
641 etnaviv_gem_obj_add(dev, obj);
642
643 ret = drm_gem_handle_create(file, obj, handle);
644
645
646fail:
647 drm_gem_object_put(obj);
648
649 return ret;
650}
651
652int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
653 const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res)
654{
655 struct drm_gem_object *obj;
656 int ret;
657
658 ret = etnaviv_gem_new_impl(dev, size, flags, ops, &obj);
659 if (ret)
660 return ret;
661
662 drm_gem_private_object_init(dev, obj, size);
663
664 *res = to_etnaviv_bo(obj);
665
666 return 0;
667}
668
669static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
670{
671 struct page **pvec = NULL;
672 struct etnaviv_gem_userptr *userptr = &etnaviv_obj->userptr;
673 int ret, pinned = 0, npages = etnaviv_obj->base.size >> PAGE_SHIFT;
674
675 might_lock_read(¤t->mm->mmap_lock);
676
677 if (userptr->mm != current->mm)
678 return -EPERM;
679
680 pvec = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
681 if (!pvec)
682 return -ENOMEM;
683
684 do {
685 unsigned num_pages = npages - pinned;
686 uint64_t ptr = userptr->ptr + pinned * PAGE_SIZE;
687 struct page **pages = pvec + pinned;
688
689 ret = pin_user_pages_fast(ptr, num_pages,
690 FOLL_WRITE | FOLL_FORCE | FOLL_LONGTERM,
691 pages);
692 if (ret < 0) {
693 unpin_user_pages(pvec, pinned);
694 kvfree(pvec);
695 return ret;
696 }
697
698 pinned += ret;
699
700 } while (pinned < npages);
701
702 etnaviv_obj->pages = pvec;
703
704 return 0;
705}
706
707static void etnaviv_gem_userptr_release(struct etnaviv_gem_object *etnaviv_obj)
708{
709 if (etnaviv_obj->sgt) {
710 etnaviv_gem_scatterlist_unmap(etnaviv_obj);
711 sg_free_table(etnaviv_obj->sgt);
712 kfree(etnaviv_obj->sgt);
713 }
714 if (etnaviv_obj->pages) {
715 int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
716
717 unpin_user_pages(etnaviv_obj->pages, npages);
718 kvfree(etnaviv_obj->pages);
719 }
720}
721
722static int etnaviv_gem_userptr_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
723 struct vm_area_struct *vma)
724{
725 return -EINVAL;
726}
727
728static const struct etnaviv_gem_ops etnaviv_gem_userptr_ops = {
729 .get_pages = etnaviv_gem_userptr_get_pages,
730 .release = etnaviv_gem_userptr_release,
731 .vmap = etnaviv_gem_vmap_impl,
732 .mmap = etnaviv_gem_userptr_mmap_obj,
733};
734
735int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
736 uintptr_t ptr, u32 size, u32 flags, u32 *handle)
737{
738 struct etnaviv_gem_object *etnaviv_obj;
739 int ret;
740
741 ret = etnaviv_gem_new_private(dev, size, ETNA_BO_CACHED,
742 &etnaviv_gem_userptr_ops, &etnaviv_obj);
743 if (ret)
744 return ret;
745
746 lockdep_set_class(&etnaviv_obj->lock, &etnaviv_userptr_lock_class);
747
748 etnaviv_obj->userptr.ptr = ptr;
749 etnaviv_obj->userptr.mm = current->mm;
750 etnaviv_obj->userptr.ro = !(flags & ETNA_USERPTR_WRITE);
751
752 etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
753
754 ret = drm_gem_handle_create(file, &etnaviv_obj->base, handle);
755
756
757 drm_gem_object_put(&etnaviv_obj->base);
758 return ret;
759}
760